Nice instructable, but some parts were kinda confusing. Mine turned out LOOKING great. Unfortunately, it didn't work as good as it looks. The missiles I made wouldn't launch. Any tips on making a "perfect" missile?

This project looks very interesting to me. I am very likely to try to make quite a few.

As for paper "missiles" in general, I have found that paper missiles can be mounted on paper airplanes easiest when rectangular with pyramidal tips at their fronts. (I am also experimenting with these cones at the back for drag reduction).